Adaptive Receive Chain Selection for Wireless MIMO Power Efficiency
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Solution Overview
Problem
Wireless communication systems face inefficiencies in managing multiple-input, multiple-output (MIMO) communication techniques, particularly in determining the optimal number of receive chains to enable for a channel, which affects power consumption and resource utilization.
Innovation Solution
A method to determine the number of receive chains to enable based on transmission scheduling rate, channel quality, and traffic type, allowing adaptive enabling or disabling of receive chains to optimize power usage and resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple receive chains are enabled for MIMO communication, then noise tolerance and throughput are improved, but power consumption and resource use increase
Solution Approach 1:
The patent applies dynamics by making the receive chain configuration adjustable rather than fixed. The system dynamically enables or disables receive chains based on real-time channel conditions, traffic requirements, and quality of service parameters, allowing the device to adapt its power consumption and performance characteristics to match actual operational needs
Solution Approach 2:
The patent changes the parameter of receive chain activation state from a fixed binary choice to a dynamically adjustable parameter. By modifying which receive chains are active based on channel quality, traffic type, and QoS requirements, the system optimizes the balance between noise tolerance and power consumption
2Productivity
If multiple receive chains are enabled for MIMO communication, then throughput is improved, but resource use increases
Solution Approach 1:
The system dynamically adjusts the number of active receive chains based on throughput requirements and available resources. By evaluating channel conditions and traffic demands in real-time, the system enables receive chains only when necessary to achieve desired throughput levels, avoiding unnecessary resource consumption
Solution Approach 2:
The patent modifies the operational parameters of the communication system by adjusting receive chain activation based on throughput requirements. This parameter change allows the system to scale resource usage according to actual performance needs rather than operating at maximum capacity continuously
3Use of energy by moving object
If receive chains are disabled to conserve power, then power consumption is reduced, but noise tolerance and throughput decrease
Solution Approach 1:
The system dynamically determines when to disable receive chains by evaluating channel quality metrics and traffic requirements. Receive chains are disabled only when channel conditions are good and traffic demands are low, ensuring that noise tolerance is maintained when actually needed while achieving power savings during favorable conditions
4Quantity of substance
If receive chains are disabled to conserve resources, then resource use is reduced, but throughput and performance decrease
Solution Approach 1:
The system dynamically adjusts receive chain activation based on real-time throughput requirements and resource availability. By continuously monitoring channel conditions and traffic patterns, the system enables receive chains only when throughput enhancement is actually required, optimizing the balance between resource usage and performance
Data Source
AI summary
Techniques are described for wireless communication at a wireless communication device. A determination may be made regarding the number of receive chains, of a plurality of receive chains, to enable for a channel. Power to the receive chains may be regulated based on the determined number of enabled receive chains. The determination may be based on a transmission scheduling rate for the wireless communication device and a rank for the channel. In some examples, the determination may further be based on a channel quality of the channel and/or a type of traffic scheduled for the channel.